There was a hunter maneuver in 4e ... that allowed one to kick out a snapshot volley... which attacked multiple enemies in a 15x15 area. up to 9, i thought it needed an option to focus fire those where one of the damn things was bound to hit (they are all weak attacks and it may be that multiple hit on a good roll and only 1 on poor roll. Damage on a miss might represent such a volley focus fired.
I find trip attack, disarming attack, and pushing attack are already good with a bow because they cannot normally be done with a ranged weapon. That's why I wouldn't include the decisive attack option with ranged.
Lightning arrow is already similar in functionality if not effect given it's damage on a miss plus additional targets who need to save.
A 11 level fighter with crossbow expertise can already make 7 attacks via action surge and bonus attack before maneuvers so if I'm understanding correctly it might be a bit redundant. Action surge and extra attacks is already same target or multi-target and gets up to 8 (9 with a hand crossbow) that method.
It competes with the ranger's volley ability too.
I think the ranged idea might take more thought. Unless I'm misunderstanding. I get enough brain farts my head can get right down flatulent.
